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PD Dr. med. Jennifer Klasen (MME)

Oberärztin Viszeralchirurgie



Oberärztin Viszeralchirurgie
Clarunis Universitäres Bauchzentrum Basel
Standort Universitätsspital Basel

01/2019 -08/2019
Forschungsaufenthalt Educational and Qualitative Research,
CERI, Center of Education Research and Innovation,
Western University, London, Ontario, Kanada

Seit 2018
PhD candidate of Health Professions Education, Universität Maastricht

Master of Medical Education, Universität Bern

Oberärztin Klinik für Chirurgie
Spital Thurgau AG, Frauenfeld

Facharztprüfung FMH Chirurgie

Assistenzärztin Viszerale Chirurgie und Medizin
Inselspital Bern

Assistenzärztin Klinik für Chirurgie
Spital Bülach

2002 -2009
Studium der Humanmedizin
Universität Leipzig







  • Lazaridis II, Schneider R, Stocker R, Kraljević M, Klasen JM, Delko T: Intraoperative Patterns of Gastric Microperfusion During Laparoscopic Roux-en-Y Gastric Bypass. 2022: Obesity surgery 32: 4047–4056.
  • Klasen JM, Tynes DM, Peterson CJ, Schneider R, Timper K, Peterli R, Randall CL, Delko T: The Impact of the COVID-19 Pandemic on Patients from a Bariatric Program:A Qualitative Analysis of Their Perceptions of Health and Well-Being. 2022: Healthcare.
  • Luong V, Burm S, Bogie BJM, Cowley L, Klasen JM, MacLeod A, LaDonna KA: A phenomenological exploration of the impact ofCOVID-19 on the medical education community. 2022: Medical education, 56: 815–822.
  • Daume DL, Becker PM, Linke K, Ries JJ, Fourie L, Klasen JM: Differential diagnoses of right lower quadrant pain in late pregnancy. 2022: Journal of surgical case reports. rjac200.
  • Klasen JM: Failure to rescue. 2022: Swiss Knife.
  • Burm S, Luong V, LaDonna K, Bogie B, Cowley L, Klasen JM, MacLeod A: From struggle to opportunity: Reimagining medical education in a pandemic era. 2022: Perspectives on medical education 11: 115–120.
  • Haak F, Poletti T, Grossman N, von Holzen U, Bolli M, Klasen JM, Glass T, von Strauss und Torney M: Interprofessional differences in preoperative planning—the individualist surgeon. 2022: European Surgery.
  • Klasen JM, Teunissen PW, Driessen EW, Lingard LA: ‘It depends’: The complexity of allowing residents to fail from the perspective of clinical supervisors. 2022: Medical teacher 44: 196–205.
  • Klasen JM, Schoenbaechler Z, Bogie BJM, Meienberg A, Nickel C, Bingisser R, LaDonna K: Medical students’ perceptions of learning and working on the COVID-19 frontlines: ‘… a confirmation that I am in the right place professionally’. 2022: Medical education online 27: 2082265.
  • Klasen JM, Frick SE: Myths and Facts about Feedback. 2022: Swiss Knife.
  • Linke K, Schoen S, Fourie L, Klasen JM: Spinal surgery for gallstones disease – Case report of a rare differential diagnosis. 2022: International journal of surgery case reports 94: 106995.
  • Klasen JM, Teunissen PW, Driessen E, Lingard LA: Trainees’ perceptions of being allowed to fail in clinical training: A sense-making model. 2022: Medical education.
  • Klasen JM, Beck J, Randall CL, Lingard L: Using Trainee Failures to Enhance Learning: A Qualitative Study of Pediatric Hospitalists on Allowing Failure. 2022: Academic pediatrics.
  • Klasen JM, Bingisser R, Meienberg A, Bogie B: Harnessing unique experiences to build competence: Medical student engagement in frontline care during the COVID-19 pandemic. 2021: Swiss medical weekly 15: w20480.
  • Klasen JM, Teunissen PW, Driessen EW, Lingard LA: ‘It depends’: The complexity of allowing residents to fail from the perspective of clinical supervisors. 2021: Medical teacher: 1–10. Zante B, Klasen JM: Learner-centered education: ICU residents’ expectations of teaching style and supervision level. 2021: BMC medical education 21: 411.
  • Klasen JM, Meienberg A, Bogie BJM: Medical student engagement during COVID-19: Lessons learned and areas for improvement. 2021: Medical education 55: 115–118.
  • Klasen JM, Peterson CJ, Fourie LL, Boldanova T, Terracciano LM, Holbro A, Kollmar O: Small crystals with severe consequences. 2021: Journal of surgical case reports 2021: jab135.
  • Klasen JM, Würth K, Kollmar O: ‘That’s okay for me.’ ‘But it’s not okay for me.’ Tension and balance between patient’s will and surgeon’s motivation. Patient education and counseling 104: 2179–2180.
  • Klasen JM, Lingard LA: The butterfly effect in clinical supervision. 2021: Perspectives on medical education 10: 145–147.
  • Schneider R, Kraljević M, Peterli R, Rohm TV, Klasen JM, Cavelti-Weder C, Delko T: GLP-1 Analogues as a Complementary Therapy in Patients after Metabolic Surgery: a Systematic Review and Qualitative Synthesis. Obes Surg. 2020 Sep; 30(9): 3561–3569
  • Peterson CJ, Klasen JM, Delko T, Schneider R: Mechanical colon obstruction due to the alimentary limb after Roux-en-Y gastric bypass: a case report. Accepted for publ. 2020 inJournal of Medical Case Reports
  • Klasen JM, Driessen E, Teunissen PW, Lingard LA. 'Whatever you cut, I can fix it': clinical supervisors' interview accounts of allowing trainee failure while guarding patient safety. BMJ Qual Saf 2019. PMID 31704890
  • Klasen JM and Lingard LA. Allowing failure for educational purposes in postgraduate clinical training: A narrative review. Med Teach 2019. PMID 31280625
  • Frick SE, Mueller MK, Klasen JM. Hands-on teaching and feedback: challenges in surgical workshops. Med Educ 2019. Among authors: Klasen JM. PMID 30907451
  • Klasen J, Hauswirth F. Hausarzt Praxis Rektumprolaps erkennen und behandeln. 06/2018.
  • Rohner A, Widmer JD, Klasen J, Scheiwiller A, Muller D, Muller MK. Surg Obes Relat Dis. Long-term outcomes of gastric band removalwithout additional bariatric surgery. 02/2017.
  • Klasen J, Güller U, Muff B, Candinas D, Seiler C, Fahrner R.Treatment options for spontaneous and postoperative sclerosing mesenteritis. World J Gastrointest Surg. 11/2016.
  • Muller MK, Wrann S, Widmer J, Klasen J, Weber M, Hahnloser D. Perforated Peptic Ulcer Repair: Factors Predicting Conversion in Laparoscopy andPostoperative Septic Complications. World J Surg. 09/2016.
  • Kaderli R, Klasen J, Businger A. Mentoring in general surgery in Switzerland. Med Educ Online. 03/2015.
  • Klasen J, Wenning A, Storni F, Angst E, Gloor B. Efficient and safe small-bowel adhesiolysis. Dig. Surgery. 11/2014.
  • Kurmann A, Wanner B, Martens F, Klasen J, Stickel F, Montani M, Candinas D, Beldi G. Hepatic steatosis is associated with surgicalsite infection after hepatic and colorectal surgery. Surgery. 07/2014.
  • Fahrner R, Malinka T, Klasen J, Candinas D, Beldi G. Additional surgical procedure is a risk factor for surgical site infections after laparoscopic cholecystectomy. Langenbecks Arch Surg. 06/2014.